Locking mechanism for doors



P 1958 o. c. ECKEL 2,851,870

LOCKING MECHANISM FOR DOORS Filed NOV. 7, 1955 2 Sheets-Sheet l 1; I EII I 'I I I II II 2 i I l I I l I I I i II I I I I l i I I I0 "T I l I Il I I I l I l I L I I I I i l I l I I I l I I H- 2a I F Sept. 16, 1958o. c. ECKEL 2,851,870

LOCKING MECHANISM FOR DOORS Filed Nov. 7, 1955 2 Sheets-Sheet 2 l I 24 Iwm w I I 20 I I l I I ,2;

I -I /6 I 0 /ZI 21 I I I I I I I I I @A-M fa mz/i 4% United StatesPatent LOCKING MECHANISM FOR DOORS Oliver C. Eckel, Carlisle, Mass.

Application November 7, 1955, Serial No. 545,436

6 Claims. (Cl. 70-101) This invention relates to locking mechanism fordoors, particularly doors with flexible bodies.

Flexible door bodies are used in some double-door installations becausethey are struck so hard when opened by driving trucks, or the like,against them, that if they were not yieldable, the door bodies would beseverely damaged or torn off the hinges. However, such flexible doorspresent the problem as to how to effectively lock them from intruders,who might distort them sufficiently to effect an entrance, or a partialentrance.

Accordingly, one object of my invention is to provide locking mechanism,particularly for double doors, that will prevent distorting of a doorsufliciently to gain an effective entrance.

Another object is to provide locking mechanism whereby, with a singlelocking control member, a double door can be separately locked at theinside and also separately locked at the outside, and likewise unlockedfrom either the inside or outside.

A further object is to provide such locking mechanism that is simple toplace in or remove from, looking position, and is relatively inexpensiveto manufacture.

The foregoing and other objects which will appear as the nature of theinvention is better understood, may be accomplished by a construction,combination and arrangement of parts such as is disclosed by thedrawings. The nature of the invention is such as to render itsusceptible to various changes and modifications, and therefore, I amnot to be limited to the construction disclosed by the drawings nor tothe particular parts described in the specification; but am entitled toall such changes therefrom as fall within the scope of my claims.

In the drawings:

Fig. 1 is a front elevational view of a double door with my lockingmechanism in locked position.

Fig. 2 is an enlarged, sectional view taken on the line 2-2 of Fig. 1.

Fig. 3 is a front elevational view of my locking control member.

Fig. 4 is a side elevational view of said member.

Fig. 5 is a top plan view of my locking control member.

As illustrated, a double door includes a single left door having holes11 therethrough in the upper half and lower half thereof. Also includedis a single right door 12 having holes 13 therethrough in the upper halfand lower half thereof. Said doors 10 and 12 are swingably supported byhinges 14 and are slightly spaced apart, between their noses or freeedges, when in closed position.

A locking control member 18, of general Z-shape in cross section, may beformed of sheet steel, for instance, such as 16 gauge, or about inchthick. In position of use it has a left portion 20 bearing upon oradjacent a face of said door 10, and which has holes 21 therethroughcorresponding to said holes 11 in said door 10. An intermediate orconnector portion 22 extends angularly, shown as a right angle, to saidleft portion 20, from which extends a right portion 24 at a right angleto said connector doors to support the control member.

portion 22 and bearing upon or adjacent a face of said door 12. Thelatter has holes 25 therethrough corresponding to holes 13 in said rightdoor 12.

Said control member has an integral top hanger portion 26 that is bentat an angle so that it extends from said left portion 20 rearwardly andrests on top of the left door 10. Another top hanger portion 27 is alsobent at an angle so that it extends from said right portion 24 forwardlyat an angle and rests on top of the right door 12. These top hangerportions 26 and 27 are welded to said intermediate portion 22, and theykeep said con trol member from scraping on the floor and utilize the Mycontrol member preferably extends the full height of the door, and is ofconsiderably less width than that of the two doors 10 and 12.

Extending through each of said door holes 11 and 13 are bushings 28which are threaded at one end, each of which has an integral collar 30which lies against a face surface of a door, while a threaded collar 32screwthreadedly fits over the threaded end of said bushing 28 and liesagainst the face surface of said door, thus providing wear protectionfor said holes.

To lock said double door I provide an elongate member, shown as a chain34, or similar elongate member, that extends through the hollow bnshings23 in the upper and lower said door holes 11 of said left door 10, andit also extends through said holes 21 in the locking control member 18opposite said latter door holes 11, the ends of said chain being broughttogether to receive a padlock 36. Another chain 38 is provided for theright door that extends through the hollow bushings 28 in the holes 13and through the holes 21 in the locking control member 18 on the rightside, the ends of the chain 38 being locked outside said control member18 by a padlock 40. While a single chain could be used with a padlock tohold both doors in locked position, I prefer the above arrangement forsome purposes.

To hang my control member 18 on a hook, for instance, I provide holes 42therein.

What I claim is:

1. Locking mechanism in combination with a double door embodying a doorat the left and another at the right, the noses of which doors arenormally spaced apart, each said door having two holes therein spacedapart, and located in upper and lower half portions of said doors, saidlocking mechanism embodying a locking control member extending more thanone-third the height of said doors and having a first portion adjacent aface of said left door and having two holes therethrough, anintermediate portion extending angularly therefrom, and a third portionextending from said intermediate portion and being adjacent a face ofsaid right door and having two holes therethrough, said holes in saidfirst and third portions communicating with said holes in said twodoors, said intermediate portion extending from a point adjacent thefront face of a said door, through said space between said door noses toa point adjacent the rear face of the other said door, said first andthird portions connecting with said intermediate portion and extendingtherefrom in opposite directions and being at opposite faces of saiddoors, an elongated locking member extending through the holes in saidleft door and two of said holes in said locking control member firstportion, means locking different portions of said elongate lockingmember together, and another elongate locking member extending throughthe holes in said right door and two of said holes in said lockingcontrol member third portion, and means locking different portions ofsaid other elongate locking member together.

2. Locking mechanism in combination with a double d'oorembodying-a doorat the left and another at the right; thenoses" of' which doorsarenormally spaced apart, each said door having a pair of holes thereinspaced. vertically apart, and located in upper and lower halfportionsofsaiddoors; saidloeking mechanism embodying alocking'control memberextending more than one-third the, height of'said doors andhavingafirstiportion adjacent a face. of said left door andlhaving; two,

holes therethrough, spacedverticall'y apart,,an intermediate portionextending angularlytherefrom, and a third portion extending from saidintermediate portion and being adjacent a' face of said'ri'ghtdoorand'having two holes. therethrough, saidholes in saidifirstandthirdportions communicating respectively'with said holes in said" berfirst portion, means locking different portions of,

said elongate locking member together, and another elongate lockingmember extending through the holes in said rightdoor and two of saidholes in said lockingcontrol member: third portion, and means lockingdilferent portions of said other elongate locking member together,

the free ends of said first :elongate.locking member being at oneface'of 'said'double door andthe free ends of said other elongate lockingmember being at the opposite face of said double door.

3. Locking mechanism in, combination with a double door embodying. adoor at the left and another door at the right, each said door. having apair of holes therein spaced apart, and located in upper and lower halfportions of said doors, said locking mechanism. embodying a lockingcontrol member extending more than one-third the heightiof said doorsand' having a first portion adjacent'a'faceofsaid left door andhavingtwoholes therethrough spaced apart, an. intermediate portion extendingangularl'y'therefrom, and a third portion extending from saidintermediate portion and being adjacent a face of said right door andhaving two holes therethrough spaced apart; said holes in said first andthird portions communicating respectively with. said. holes in said leftand right doors, said intermediate portion extending from a pointadjacent, the front face of a said door, through said space between saiddoor noses to a point adjacent the rear face of the other said door,said first and third portions connecting with said intermediate portionand extending therefrom in opposite directions and being at oppositefaces of said doors, bushings extending through eachhole of said pair insaid left door, bushings extending through each hole of said pair insaidright door, a first locking member extending through said bushingsin said left door and said' holes in said first portion, means lockingportions of said locking member together, another lockingmember'extending through said bushings in said right door and said holesin said third portion, and, meanslocking portions of said other lockingmember'together;

4*. Locking-mechanism in combination with a double doorembodying a doorat the left and another door at the right, each said door having a pairof holes therein spaced apart sai'd locking mechanism embodying alocking control member-having a first portion adjacent a face of saidleftdoor and having two holes therethrough spaced apart, an intermediateportion extending angularly therefrom, and'a third portion extendingfrom said intermediate portion and' being adjacent a face-of said rightdoor and: having two holes therethrough spaced apart, said holes in saidfirst and thirdportions communicat ing. respectively with said holes in'said left, and right doors, said intermediate portion extending from apoint adjacent the" front" face" of" a said door, through said spacebetween said door noses to a point adjacent the rear face of the othersaid door, said first and third portions connecting with saidintermediate portion and extending therefrom in opposite directions andbeing at opposite faces of said doors, bushings extending through eachhole of said pair in saidzleft'door, bushings extending through eachholeof, said pair in said right door, a first locking member extendingthrough said bushings in said left door. and saidlholes in. said. firstportion, means locking portions ofsaidtlocking member together, anotherlocking member extending through said'bushings in said right door:andsaid: holes in: said third portion, and, means locking portions ofsaid other locking mem ber together, said first portion embodying a tophanger portion extending angularly and said third portion embodying atophanger portion extending angularly in the opposite direction to saidfirst top hanger portion, both said top hanger portions resting on thetops of said doors;

5. Locking mechanism in combination with a double door embodying ado-or-attheleft and another door at the right, each said door having apair of holes therein spaced'vertically apart; said lockingmechanism'embodying alocking'control member having a firstportionadjacent aface' of said'leftidoor andhaving two holes therethroughspacedvertically apart, an intermediate portion extending angularlytherefrom, anda third portion extending from said intermediate portionand-being adjacent aface' of said. rightdoor; and having two holestherethrocgh spaced vertically apart, saidholes' in said, first andthird portions communicating respectively with said holesiirsaidleftandi right doors, said intermediate portion" extending from'azpointadjacent the front face ofa said door; through said? spacebetween said door noses'to' a' point adjacent'therear face of 'the othersaid'. door, said first andthird portions connectingwith said'intermediate portion and extendingtherefrom in opposite.

directions and being at opposite faces of! said doors, a first lockingchain extending through said holes in said left door and'said holes insaid first portion, means= locking portions ofsaid'locking chaintogether, another locking chain extending through saidholes in saidright door; andsaid holes in said thirdportion, and; means locking.portions of' said other locking chain together, said first portionembodying a top hanger portion ex-.

tending, right-angularly outward and said third' portion embodyinga tophangerportion extending right-angularly, inward, both said'top, hangerportions resting ontheltops. of said doors.

6. Locking mechanism in combination with a double door embodying a doorat theleft and another. at the right, the noses of which doors are.normally; spaced apart, each said door having two holes therethroughvspace-d apart,,said locking mechanism embodying a looking control memberextending for a major parttof thev height of said doors and havingafirst portionadjacent a face of said left door and having two holestherethroughspaced apart, an intermediate portion extending angularlytherefrom, anda third portion extending. from said intermediate portionand. being. adjacent a: face of saidrightLdoorand having twoholestherethroughspaced apart, said holes in said first and thirdportions:com-. municating with said'holes in said doors,- said interme-.

diate portion extending from a point adjacentthe. front.

(References on" following page) 5 References Cited in the file of thispatent 2,486,790

UNITED STATES PATENTS 413,128 Brabson Oct. 15, 1889 1,319,603 MonfetOct. 21, 1919 2,236,938 Edelen Apr. 1, 1941 617,965 2,338,851 Heyer Jan.11, 1944 620,478

6 Lane Nov. 1, 1949 Welliver et a1 July 18, 1950 Jones Jan. 2, 1951FOREIGN PATENTS Germany Aug. 24, 1935 France Jan. 21, 1927

